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Search Result > Total (23) Items Found. Sort By :  Price  |  Price Per Carat  |  Weight  |  Shape 

Opal is an amorphous silica mineraloid, which may also contain up to twenty percent water by weight. Material is usually sub-classified as either “common” or “precious”, with the latter displaying the play-of-color phenomenon with which the species is most associated. This effect is observed as a multi-colored iridescence that is seen to shift in form as the stone, viewer and/or light source is moved. As “hot” hues are less commonly encountered within these patterns than greens and blues, their presence will significantly increase a stone’s value.

While most precious opals are whitish, some rare and highly-valuable specimens from Lighting Ridge, New South Wales provide a darker background against which the above-described effect is especially prominent. However, the neighboring state of South Australia is responsible for around eighty percent of the world’s precious opal production as a whole, with recently-discovered deposits in northern Ethiopia providing much of the remainder.

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AFG0005
Ethiopian Opal Cabochon
$ 65.00
1 pcs 7.20cts

 
RJV0007
Ethiopian Opal Cabochon
$ 400.00
1 pcs 10.38cts

 
RJV0008
Ethiopian Opal Cabochon
$ 280.00
1 pcs 7.15cts

 
GSJ0028
Black Opal
$ 148.00
1 pcs 25.77cts

 
CBL0049
Black Opal
$ 500.00
1 pcs 10.47cts

 
PIM0088
Black Opal Cabochon
$ 35.00
1 pcs 3.34cts

 
PIM0089
Black Opal Cabochon
$ 25.00
1 pcs 2.37cts

 
PIM0090
Black Opal Cabochon
$ 20.00
1 pcs 1.98cts

 
PIM0091
Black Opal Cabochon
$ 50.00
1 pcs 4.91cts

 
PIM0092
Black Opal Cabochon
$ 20.00
1 pcs 1.95cts

 
PIM0093
Black Opal Cabochon
$ 20.00
1 pcs 2.08cts

 
PIM0094
Black Opal Cabochon
$ 20.00
1 pcs 2.12cts

 
PIM0095
Black Opal Cabochon
$ 20.00
1 pcs 1.97cts

 
PIM0096
Black Opal Cabochon
$ 20.00
1 pcs 1.67cts

 
PIM0097
Black Opal Cabochon
$ 15.00
1 pcs 1.22cts

 
PIM0098
Black Opal Cabochon
$ 30.00
1 pcs 2.85cts

 
PIM0099
Black Opal Cabochon
$ 25.00
1 pcs 2.46cts

 
PIM0100
Black Opal Cabochon
$ 45.00
1 pcs 4.53cts

 
PIM0101
Black Opal Cabochon
$ 60.00
1 pcs 6.13cts

 
PIM0102
Black Opal Cabochon
$ 30.00
1 pcs 2.81cts

 
PIM0103
Black Opal Cabochon
$ 25.00
1 pcs 2.31cts

 
PGW0013
Black Opal Cab Pair
$ 80.00
2 pcs 4.16cts

 
PGW0129
Black Opal Cab
$ 20.00
1 pcs 4.56cts

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